package com.heima.user.interceptor;

import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.heima.model.wemedia.pojos.WmUser;
import com.heima.utils.thread.WmThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Slf4j
public class WmTokenInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //从request  header中获取userId  存入Threadlocal
        String userId = request.getHeader("userId");
        if(StringUtils.isNotBlank(userId)){
            WmUser wmUser = new WmUser();
            wmUser.setId(Integer.valueOf(userId));
            WmThreadLocalUtil.setUser(wmUser);
        }
        return true;//放行
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        WmThreadLocalUtil.clear();
    }
}
